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Replace setbinary' by a public %default-port-encoding' fluid.

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* doc/ref/api-evaluation.texi (Character Encoding of Source Files): Add
  reference to the "Ports" node.

* doc/ref/api-io.texi (Ports): Document `%default-port-encoding'.

* libguile/ports.c (scm_port_encoding_var): Rename to...
  (default_port_encoding_var): ... this; update callers.  Make `static'.

* libguile/posix.c (scm_setbinary): Remove.

* libguile/posix.h: Adjust accordingly.

* test-suite/tests/numbers.test: Remove unneeded `setbinary' call.

* test-suite/tests/ports.test: Replace `setbinary' call by equivalent
  `%default-port-encoding' mutation and `set-port-encoding!' calls.

* test-suite/tests/r6rs-ports.test: Replace `setbinary' call by
  equivalent `%default-port-encoding' mutation.
This commit is contained in:
Ludovic Courtès 2009-11-14 16:14:20 +01:00
parent c2be4e891c
commit d6a6989e08
8 changed files with 38 additions and 53 deletions
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7
doc/ref/api-evaluation.texi
View file

@ -666,14 +666,17 @@ and @code{UTF-32} may not be used because they are not compatible with
ASCII.
@cindex read
@cindex set-port-encoding!
@cindex encoding
@cindex port encoding
@findex set-port-encoding!
There might be a scenario in which one would want to read non-ASCII
code from a port, such as with the function @code{read}, instead of
with @code{load}. If the port's character encoding is the same as the
encoding of the code to be read by the port, not other special
handling is necessary. The port will automatically do the character
encoding conversion. The functions @code{setlocale} or by
@code{set-port-encoding!} are used to set port encodings.
@code{set-port-encoding!} are used to set port encodings
(@pxref{Ports}).
If a port is used to read code of unknown character encoding, it can
accomplish this in three steps. First, the character encoding of the

6
doc/ref/api-io.texi
View file

@ -111,6 +111,12 @@ Sets the character encoding that will be used to interpret all port
I/O. @var{enc} is a string containing the name of an encoding.
@end deffn
@defvr {Scheme Variable} %default-port-encoding
A fluid containing containing @code{#f} or the name of the encoding to
be used by default for newly created ports (@pxref{Fluids and Dynamic
States}). The value @code{#f} is equivalent to @code{"ISO-8859-1"}.
@end defvr
New ports are created with the encoding appropriate for the current
locale if @code{setlocale} has been called or ISO-8859-1 otherwise,
and this procedure can be used to modify that encoding.